package com.dpj.Servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class BaseServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        //获取请求路径
        String requestURI = req.getRequestURI();  //  /brand/add

        int index = requestURI.lastIndexOf('/');
        //获取最后一个路径 方法名
        String methodName = requestURI.substring(index+1);

        Class<? extends BaseServlet> aClass = this.getClass();
        try {
            Method method = aClass.getMethod(methodName, HttpServletRequest.class, HttpServletResponse.class);
            method.invoke(this,req,resp);
        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
            e.printStackTrace();
        }


    }
}
